I am unsure how "fun" it is to have a bunch of a/c in hangars, unable to fly with the longer ready times, but in a way, it makes it more interesting as you must truly plan for when to launch air sorties, as they are so limited. To just launch and recover and turn around and launch again in 30 minutes, seems rather "arcade-ey to myself lol, but to each their own, and the more people enjoying the game, the better.
Therein lies the crux of the matter, IMO. I try not to use words like "realistic". As long as it 'works', it is 'realistic'.
There are already many things that cannot be simulated with Customized Ready Times. For example, planes can fly at any hour of the day. So, you get ## missions interspaced throughout the day even though those same ## missions should only be allowed during daylight hours. CRTs are not perfect, but they add an additional 'flavour' to the game.